{"id":"DEBIAN-CVE-2025-30187","details":"In some circumstances, when DNSdist is configured to use the nghttp2 library to process incoming DNS over HTTPS queries, an attacker might be able to cause a denial of service by crafting a DoH exchange that triggers an unbounded I/O read loop, causing an unexpected consumption of CPU resources.","modified":"2026-08-27T23:05:20.520676002Z","published":"2025-09-18T10:15:32.993Z","upstream":["CVE-2025-30187"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2025-30187"}],"affected":[{"package":{"name":"dnsdist","ecosystem":"Debian:13","purl":"pkg:deb/debian/dnsdist?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.9.10-1+deb13u1"}]}],"versions":["1.9.10-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-30187.json"}},{"package":{"name":"dnsdist","ecosystem":"Debian:14","purl":"pkg:deb/debian/dnsdist?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.1-1"}]}],"versions":["1.9.10-1","2.0.0-1","2.0.0-2","2.0.0-3","2.0.0-4","2.0.0-5","2.0.0-6","2.0.0~rc1-1","2.0.0~rc1-2","2.0.0~rc2-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-30187.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L"}]}